皮皮学，免费搜题
登录
搜题
【单选题】
我国目前共拥有世界遗产（）处。A.
53
B.
54
C.
55
D.
56
拍照语音搜题，微信中搜索"皮皮学"使用
参考答案：
参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【多选题】消费者购买X和Y两种商品,当实现消费者均衡时,下列等式成立的是
A.
MUx/Px=MUy/Py
B.
MRSxy=Px/Py
C.
MRSxy=MUx/Muy
D.
MUx/MUy=Px/Py
【单选题】The attention of the public was continually _____ to new possibilities in scientific fields and the discovery ofnew knowledge .
A.
applied
B.
drawn
C.
referred
D.
thrown
【单选题】婴儿 不会 因为( )导致摄入比例失调性疾病。
A.
维生素A或维生素D比例失调
B.
过多补充铁剂可以造成维生素E缺乏
C.
食物中,乳儿糕的主要成分为谷类淀粉,蛋白质成分很低
D.
消化吸收及利用障碍
【单选题】It can be inferred that the author holds a positive attitude towards______.
A.
top scientific journals
B.
filter then publish mechanism
C.
studies from star scientists
D.
open-access megajournals
【单选题】For some time now, Chinese people, under the leadership of CPC, ______ the contents of the Scientific Development Theory in the course of practicing socialism in China.
A.
had been improving
B.
have been improving
C.
were improving
D.
improved
【单选题】看图“找茬”练习 以下几幅图是常见的几种的焊接方法的设备原理图,请根据课前预习的知识,指出哪一幅图是焊条电弧焊的设备原理图,简要叙述一下其工作原理, 并写出其一些特点。
A.
图1
B.
图2
C.
图3
D.
图4
【单选题】With suffi cient scientifi c information a manned trip to Mars should be ______ .
A.
obtainable
B.
potential
C.
considerable
D.
feasible
相关题目：